Simple Machines Gr. 4

What is the difference between a simple machine and a complex machine?

• Harder math questions

• A complex machine is made of 2 or more simple machines

• A simple machine is made of 2 or more complex machines

• The amount of money you put in the machine

A pulley’s wheel has a ​ (a)   , so that the rope can fit inside.

• groove
• pulley
• load
• gear
• pulled

The ​ (a)   is something that is being lifted or carried

• load
• pulley
• gear
• pulled
• groove

What is not an example of a pulley and gear

• clothesline

• flagpole

• elevator

• drill

What is not an example of a pulley and gear

• clothesline

• flagpole

• elevator

• drill

The fixed point on a lever is called the __________.

• Bar

• Wedge

• Fulcrum

• Screw

Which of the following are examples of inclined planes? (Hint: Two!)

• Door

• Slide

• Flag Pole

• Ramp

A __________ is a bar that moves around a fixed point in order to push, pull, or move things.

• Pulley

• Lever

• Wedge

• Screw

An __________________ is a flat surface that is raised higher at one end in order to move objects up or down.

• Lever

• Pulley

• Inclined Plane

• Wedge

A ___________ is an object that is wide at one end and pointed at the other to help cut or split objects.

• Wedge

• Screw

• Pulley

• Wheel & Axle